General Gaines only awaited permission from his superior to carry out the designs of the slaveholders, who had become alarmed at the dangers to which their "peculiar institution" was subjected. Upon the receipt of the order above quoted, he detailed Lieut. Col. Clinch,[28] of the regular troops, with his regiment and five hundred friendly Creek Indians, under McIntosh, their principal chief, to carry out the directions of General Jackson. Colonel Clinch was directed to take with him two pieces of artillery, for the purpose of cannonading the fort if necessary.[29] This commencement of the first Seminole war was, at the time, unknown to the people of the United States. It was undertaken for the purposes stated in General Jackson's order, to "blow up the fort, and _return the negroes to their rightful owners_." Historians have failed to expose the cause of hostilities, or the barbarous foray which plunged the nation into that bloody contest which cost the people millions of treasure and the sacrifice of hundreds of human lives. It was July before the arrangements were fully made by Colonel Clinch and his savage allies for descending the river, with suitable artillery and supplies, to accomplish the object of their mission.[30] The Creeks, having entered into the treaties of New York and Colerain, by which they bound themselves, twenty years previously, to return those Exiles who fled from Georgia, and having failed to perform those stipulations, now cheerfully united with the American army in this first slave-catching expedition undertaken by the Federal Government. Of these movements the Exiles had been informed by their neighbors, the friendly Creeks; for, among the Lower Creeks, were individuals who at all times sympathized with them, and kept them informed of the measures adopted for their destruction. All the families living on the river and in the vicinity of the fort, fled to it for protection. They had no idea of the advantages arising from scientific warfare; they believed their fortification impregnable. Colonel Nichols had erected it for the purpose of affording them protection, and they had no doubt of its efficiency for that purpose. Such were the delays attending the journey, in consequence of difficulties in transporting heavy guns and provisions, that the troops did not reach the vicinity of the fort until the twenty-fourth of July. In the meantime, Commodore Patterson, in pursuance of orders from the naval department, had detailed Sailing-Master Loomis, with two gun-boats, to assist in carrying out the order of General Jackson.[31]